(AP) – Counties in Pennsylvania have started testing their voting equipment to ensure that it’s working properly ahead of the November election. All election equipment used to count votes is tested during the process. This includes everything from machines that tabulate mail ballots to devices used by voters who cast ballots in person. The procedure, known as a logic and accuracy test, involves running a predetermined collection of sample ballots through the machines to confirm that they’re tabulating and processing ballots correctly. The testing helps officials ensure not only that the equipment is functioning properly but that ballots don’t have any proofing errors, such as missing candidates. (Photo: AP)